CLP Program - Acid Surrogate Standard Back Catalog number: 20035 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 31028 EPA Method 525 - Phthalate Standard Price on request 0363.8-100MG 2-n-Butylthiophene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 1455-20-5 Price on request 3519.6-100-AN 1,2,4-Trichlorobenzene Price on request